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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <ctype.h>
#include <string.h>
#include <stdio.h>
#include <signal.h>
#include <sys/wait.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <unistd.h>
#include <time.h>
#include <utmpx.h>
#include <pwd.h>
#include <fcntl.h>
#include <stdarg.h>
#include <locale.h>
#include <stdlib.h>
#include <limits.h>
#include <wctype.h>
#include <errno.h>
#include <syslog.h>
#define TRUE 1
#define FALSE 0
#define FAILURE -1
/*
* DATE-TIME format
* %a abbreviated weekday name
* %b abbreviated month name
* %e day of month
* %H hour - 24 hour clock
* %M minute
* %S second
*
*/
extern char myhostname[];
extern char progname[];
static void openfail(int);
static void eof(void);
static void setsignals(void (*)());
static FILE *fp; /* File pointer for receipient's terminal */
static char *rterm; /* Pointer to receipient's terminal */
int
warn_send(char *receipient, char *msg)
{
register struct utmpx *ubuf;
static char rterminal[] = "/dev/\0 2345678901";
extern FILE *fp;
time_t tod;
char time_buf[40];
register int bad = 0;
char *rcp1, *rcp2, *rcp3;
(void) setlocale(LC_ALL, "");
#if !defined(TEXT_DOMAIN)
#define TEXT_DOMAIN "SYS_TEST"
#endif
(void) textdomain(TEXT_DOMAIN);
/* Set "rterm" to location where receipient's terminal will go. */
rterm = &rterminal[sizeof ("/dev/") - 1];
/*
* strip any realm or instance from principal so we can match against unix
* userid.
*/
rcp1 = strdup(receipient);
rcp2 = strtok(rcp1, "@");
rcp3 = strtok(rcp2, "/");
/*
* Scan through the "utmpx" file for the
* entry for the person we want to send to.
*/
setutxent();
while ((ubuf = getutxent()) != NULL) {
if (ubuf->ut_type == USER_PROCESS) {
if (strncmp(rcp3, ubuf->ut_user,
sizeof (ubuf->ut_user)) == 0) {
strncpy(rterm, &ubuf->ut_line[0],
sizeof (ubuf->ut_line)+1);
/* Try to open up the line to the receipient's terminal. */
signal(SIGALRM, openfail);
alarm(5);
fp = fopen(&rterminal[0], "w");
alarm(0);
/* Catch signals SIGHUP, SIGINT, SIGQUIT, and SIGTERM, and send */
/* <EOT> message to receipient. */
setsignals(eof);
/* Get the time of day, convert it to a string and throw away the */
/* year information at the end of the string. */
time(&tod);
cftime(time_buf, "%c", &tod);
(void) fprintf(fp, gettext(
"\r\n\007\007\007\tMessage from %s@%s [ %s ] ...\r\n"),
progname, myhostname, time_buf);
sleep(1);
fprintf(fp, gettext("\r\nMessage to %s"), msg);
fflush(fp);
/* Since "end of file" received, send <EOT> message to receipient. */
eof();
fclose(fp);
}
}
}
free(rcp1);
/* Did we find a place to talk to? If we were looking for a */
/* specific spot and didn't find it, complain and log it. */
if (*rterm == '\0')
if (bad > 0) {
(void) syslog(LOG_ERR, gettext("no place to send.\n"));
return (1);
}
endutxent();
return (0);
}
static void
setsignals(catch)
void (*catch)();
{
signal(SIGHUP, catch);
signal(SIGINT, catch);
signal(SIGQUIT, catch);
signal(SIGTERM, catch);
}
static void
openfail(int i)
{
extern char *rterm;
#if 0
(void) fprintf(stderr,
gettext("Timeout trying to open line(%s).\n"),
rterm);
#endif
syslog(LOG_ERR, gettext("Timeout trying to open line(%s).\n"),
rterm ? rterm : "");
exit(1);
}
static void
eof(void)
{
extern FILE *fp;
(void) fprintf(fp, "%s\r\n", gettext("<EOT>"));
}
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